TSOP48..SS1BS12
Vishay Telefunken
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type
TSOP4830SS1BS12
TSOP4836SS1BS12
TSOP4838SS1BS12
TSOP4856SS1BS12
fo
30 kHz
36 kHz
38 kHz
56 kHz
Type
TSOP4833SS1BS12
TSOP4837SS1BS12
TSOP4840SS1BS12
fo
33 kHz
36.7 kHz
40 kHz
Description
The TSOP48..SS1BS12 – series are miniaturized re-
ceivers for infrared remote control systems. PIN diode
and preamplifier are assembled on lead frame, the
epoxy package is designed as IR filter.
The demodulated output signal can directly be de-
coded by a microprocessor. TSOP48..SS1BS12 is the
standard IR remote control receiver series, supporting
all major transmission codes.
14 500
Features
D
Photo detector and preamplifier in one package
D
Internal filter for PCM frequency
D
Improved shielding against electrical field
disturbance
D
Low power consumption
D
High immunity against ambient light
D
Continuous data transmission possible
(800 bit/s)
D
TTL and CMOS compatibility
D
Output active low
D
Suitable burst length
≥10
cycles/burst
Block Diagram
3
Input
Control
Circuit
30 k
W
1
PIN
AGC
Band
Pass
Demodu-
lator
2
9612226
V
S
OUT
GND
Document Number 82122
Rev. 3, 29-Mar-01
www.vishay.com
1 (7)
TSOP48..SS1BS12
Vishay Telefunken
Absolute Maximum Ratings
T
amb
= 25
_
C
Parameter
Supply Voltage
Supply Current
Output Voltage
Output Current
Junction Temperature
Storage Temperature Range
Operating Temperature Range
Power Consumption
Soldering Temperature
Test Conditions
(Pin 2)
(Pin 2)
(Pin 1)
(Pin 1)
Symbol
V
S
I
S
V
O
I
O
T
j
T
stg
T
amb
P
tot
T
sd
Value
–0.3...6.0
5
–0.3...6.0
5
100
–25...+85
–25...+85
50
260
Unit
V
mA
V
mA
°
C
°
C
°
C
mW
°
C
(T
amb
85
°
C)
t
10 s, 1 mm from case
x
x
Basic Characteristics
T
amb
= 25
_
C
Parameter
Supply Current (
y
(Pin 3)
)
Transmission Distance
Supply Voltage
Output Voltage Low (Pin 3)
Irradiance (56 kHz)
Irradiance (30–40 kHz)
Irradiance
Directivity
Test Conditions
V
S
= 5 V, E
v
= 0
V
S
= 5 V, E
v
= 40 klx, sunlight
E
v
= 0, test signal see fig.7,
IR diode TSAL6200, I
F
= 250 mA
I
OSL
= 0.5 mA,E
e
= 0.7
Pulse width tolerance: t
pi
– 5/f
o
<
t
po
< t
pi
+ 6/f
o
, test signal see fig.7
Pulse width tolerance: t
pi
– 5/f
o
<
t
po
< t
pi
+ 6/f
o
, test signal see fig.7
t
pi
– 5/f
o
< t
po
< t
pi
+ 6/f
o
Angle of half transmission distance
mW/m
2
Symbol
I
SD
I
SH
d
VS
V
OSL
E
e min
E
e min
E
e max
ϕ
1/2
30
±45
Min
0.8
Typ
1.1
1.4
35
Max
1.5
Unit
mA
mA
m
V
mV
mW/m
2
mW/m
2
W/m
2
deg
4.5
0.3
0.2
5.5
250
0.6
0.4
Application Circuit
100
W
*)
3
TSOP48..SS1BS12
+5V
>10 k
W
optional
4.7
m
F *)
TSAL62..
1
**)
2
16250
m
C
GND
*) recommended to suppress power supply disturbances
**) The output voltage should not be hold continuously at a voltage below 3.3V by the external circuit.
www.vishay.com
2 (7)
Document Number 82122
Rev. 3, 29-Mar-01
TSOP48..SS1BS12
Vishay Telefunken
Suitable Data Format
The circuit of the TSOP48..SS1BS12 is designed in
that way that unexpected output pulses due to noise
or disturbance signals are avoided. A bandpassfilter,
an integrator stage and an automatic gain control are
used to suppress such disturbances.
The distinguishing mark between data signal and
disturbance signal are carrier frequency, burst length
and duty cycle.
The data signal should fullfill the following condition:
•
Carrier frequency should be close to center
frequency of the bandpass (e.g. 38kHz).
•
Burst length should be 10 cycles/burst or longer.
•
After each burst which is between 10 cycles and 70
cycles a gap time of at least 14 cycles is necessary.
•
For each burst which is longer than 1.8ms a
corresponding gap time is necessary at some time in
the data stream. This gap time should be at least 4
times longer than the burst.
•
Up to 800 short bursts per second can be received
continuously.
•
DC light (e.g. from tungsten bulb or sunlight)
•
Continuous signal at 38kHz or at any other
frequency
•
Signals from fluorescent lamps with electronic
ballast with high or low modulation (see Figure A or
Figure B).
Some examples for such disturbance signals which
are suppressed by the TSOP48..SS1BS12 are:
Some examples for suitable data format are:
NEC Code, Toshiba Micom Format, Sharp Code, RC5
Code, RC6 Code, R–2000 Code.
When a disturbance signal is applied to the
TSOP48..SS1BS12 it can still receive the data signal.
However the sensitivity is reduced to that level that no
unexpected pulses will occure.
0
5
10
time [ms]
15
20
Figure A: IR Signal from Fluorescent Lamp with low Modulation
0
5
10
time [s]
15
20
Figure B: IR Signal from Fluorescent Lamp with high Modulation
Document Number 82122
Rev. 3, 29-Mar-01
www.vishay.com
3 (7)
TSOP48..SS1BS12
Vishay Telefunken
Typical Characteristics
(T
amb
= 25
_
C unless otherwise specified)
E
e min
– Threshold Irradiance ( mW/m
2
)
1.0
/ E – Rel. Responsitivity
e
0.8
2.0
f ( E ) = f
0
1.6
1.2
0.8
0.4
0.0
0.7
94 8143
0.6
0.4
0.2
0.0
0.8
0.9
1.0
1.1
1.2
1.3
f / f
0
– Relative Frequency
f = f
0
5%
D
f ( 3 dB ) = f
0
/ 10
"
e
E
min
0.0
94 8147
0.4
0.8
1.2
1.6
2.0
E – Field Strength of Disturbance ( kV / m )
Figure 1. Frequency Dependence of Responsivity
1.0
0.9
t
po
– Output Pulse Length (ms)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.1
96 12110
Figure 4. Sensitivity vs. Electric Field Disturbances
10
f = f
0
1 kHz
Input burst duration
E
e min
– Threshold Irradiance ( mW/m
2
)
10 kHz
1
optical test signal, fig.7
l
= 950 nm,
100 Hz
1.0
10.0
100.0 1000.0 10000.0
94 9106
0.1
0.01
0.1
1
10
100
1000
E
e
– Irradiance ( mW/m
2
)
D
V
s RMS –
AC Voltage on DC Supply Voltage ( mV )
Figure 2. Sensitivity in Dark Ambient
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0.01
0.10
1.00
10.00
100.00
Ambient,
l
= 950 nm
Correlation with ambient light sources
( Disturbance effect ) : 10W/m
2
1.4 klx
( Stand.illum.A, T = 2855 K ) 8.2 klx
( Daylight, T = 5900 K )
Figure 5. Sensitivity vs. Supply Voltage Disturbances
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
–30 –15
0
15
30
45
60
75
90
Sensitivity in dark ambient
E
e min
– Threshold Irradiance (mW/m
2
)
^
^
E
e min
– Threshold Irradiance (mW/m
2
)
96 12111
E – DC Irradiance (W/m
2
)
96 12112
T
amb
– Ambient Temperature (
°C
)
Figure 3. Sensitivity in Bright Ambient
Figure 6. Sensitivity vs. Ambient Temperature
www.vishay.com
4 (7)
Document Number 82122
Rev. 3, 29-Mar-01
TSOP48..SS1BS12
Vishay Telefunken
Optical Test Signal
E
e
(IR diode TSAL6200, I
F
= 0.4 A, 30 pulses, f = f
0
, T = 10 ms)
1.0
T
on
,T – Output Pulse Length (ms)
off
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.1
1.0
l
= 950 nm,
optical test signal, fig.8
T
on
t
t
pi
*
* t
pi
w
T
10/fo is recommended for optimal function
16110
T
off
V
O
V
OH
V
OL
Output Signal
1)
2)
7/f
0
<
t
d
<
15/f
0
t
po
=
t
pi
6/f
0
t
t
po2
)
"
10.0
100.0 1000.0 10000.0
t
d1 )
96 12114
E
e
– Irradiance (mW/m
2
)
Figure 7. Output Function
E
e
Optical Test Signal
S (
l
)
rel
– Relative Spectral Sensitivity
1.2
1.0
0.8
0.6
0.4
0.2
Figure 10. Output Pulse Diagram
600
m
s
T = 60 ms
600
m
s
t
94 8134
V
O
V
OH
V
OL
Output Signal,
( see Fig.10 )
0
750
T
on
T
off
t
94 8408
850
950
1050
1150
l
– Wavelength ( nm )
Figure 8. Output Function
0.8
f = 38 kHz
0.7
Envelope Duty Cycle
0.6
0.5
0.4
0.3
0.2
Figure 11. Relative Spectral Sensitivity vs. Wavelength
0°
10°
20°
30°
40°
1.0
0.9
0.8
0.7
50°
60°
70°
80°
0.6
96 12223p2
0.1
0
10
16156
20
30
40
50
60
70
80
90
Burstlength [number of cycles/burst]
0.6
0.4
0.2
0
0.2
0.4
d
rel
– Relative Transmission Distance
Figure 9. Max. Envelope Duty Cycle vs. Burstlength
Figure 12. Directivity
Document Number 82122
Rev. 3, 29-Mar-01
www.vishay.com
5 (7)
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